Infant _________rate is the number of infants dying before reaching one year of age, per 1,000 live births in a given year.
A: mortality
B: incidence
C: disability
D: survival
A: mortality
B: incidence
C: disability
D: survival
举一反三
- One major obstacle to economic development is population growth. The populations of most developing countries grow at a rate much faster than that of in dustrialized countries. One reason for this growth is the high crude birth-rate—the number of live births per 1,000 people.（） A: to B: The populations C: that D: live births
- Suppose that your tuition to attend college is $10,000 per year and you spend $4,000 per year on room and board. If you were working full time instead of attending college, you could earn $20,000 per year. What is your opportunity cost of attending college for one year?
- This year, the number of accidents has_______that of last year.
- In 2010 the year before he died steve give himself a salary of $1 per month.
- What’s the trading volume between China and UK? A: 1 billion dollars per day. B: 70 billion dollars per year. C: 17 billon dollars per year. D: 50 billion dollars per year